Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728859 | In-line electron gun | Masao Natsuhara, Hiroshi Suzuki, Shigeya Ashizaki | 1988-03-01 |
| 4701677 | Color cathode ray tube apparatus | Shigeya Ashizaki, Koichi Sugahara, Masao Natsuhara | 1987-10-20 |
| 4612474 | In-line type electron gun | Shigeya Ashizaki, Masao Natsuhara, Koichi Sugahara | 1986-09-16 |
| 4275332 | In-line electron gun | Shigeya Ashizaki, Koichi Sugahara | 1981-06-23 |